Colonoscopy may be inconvenient and require planning, but the consequence and therapy for cancer is far more burdensome.

Q: I know that colonoscopies are more thorough than the at-home DNA stool test for colon cancer. But how much better? I have such a terrible time with anesthesia and gas. Both make me nauseated for ...

DEAR DR. ROACH: In 2018, at age 86, I had a colonoscopy where some benign polyps were found. I was recommended to come back in three years for another colonoscopy, but in 2021, procedures were not ...